Bilateral relations between modern-day Armenia and the Russian Federation were established on 3 April 1992, though Russia has been an important actor in Armenia since the early 19th century. The two countries' historic relationship has its roots in the Russo-Persian War of 1826 to 1828 between the Russian Empire and Qajar Persia after which Eastern Armenia was ceded to Russia. Moreover, Russia was viewed as a protector of the Christian subjects in the Ottoman Empire, including the Armenians.
After the dissolution of the Soviet Union, Armenia has shared Russia's approach aimed at strengthening the Commonwealth of Independent States (CIS). Armenia and Russia are both members of a military alliance, the Collective Security Treaty Organization (CSTO), along with four other ex-Soviet countries, a relationship that Armenia finds essential to its security. Among the contracts and the agreements, which determine intergovernmental relations – a treaty of friendship, collaboration and mutual aid of 29 August 1997 are a number of the documents, which regulate bases of Russian military units and liaisons in Armenia. Armenia became a full member of the Eurasian Economic Union on 2 January 2015.
In recent years, however, relations between Russia and Armenia have begun to deteriorate due to events such as the 2018 Armenian Revolution, the 2020 Nagorno-Karabakh War, the September 2022 Armenia–Azerbaijan clashes, the Russian invasion of Ukraine and especially the 2023 Nagorno-Karabakh clashes.
Background
The significant part of the territory currently belonging to Armenia was incorporated into the Russian Empire pursuant to the 1828 Treaty of Turkmenchay signed between Russia and Persia following the Russo-Persian War (1826–28).
After the 1917 Russian Revolution, Armenia gained short-lived independence as the First Republic of Armenia. By 1920, the state was incorporated into the Transcaucasian Socialist Federative Soviet Republic, a founding member of the Soviet Union that was formally constituted in 1922. In 1936, the Transcaucasian state was dissolved, leaving its constituent states, including the Armenian Soviet Socialist Republic, as full Union republics.
The modern Armenia became independent in 1991 as a consequence of the dissolution of the Soviet Union due to the failed coup that happened in August. Armenia boycotted the union-wide preservation vote earlier that year.
The Russian Federation, the successor state of the Soviet Union, is believed to have been instrumental in achieving victory by Armenians in the First Nagorno-Karabakh War (1988–1994). In 2013, the deputy prime-minister of Azerbaijan Ali S. Hasanov said, "We need to become much stronger so that if we become involved in combat in Nagorno-Karabakh we can stand up to Russian troops, because that is who we will have to face. Did Armenia occupy our territories? Do you think Armenia's power is sufficient for that?”
Developments since 2013
Faced with the choice of either joining the Russia-led Customs Union or signing the Association Agreement with the European Union, Armenia eventually chose the former option. The decision on Armenia's accession to the Customs Union was announced by the president of Armenia Serzh Sargsyan on 3 September 2013.
On 2 December 2013, Russian president Vladimir Putin arrived to Armenia on an official visit. The heads of the two states discussed Armenia's accession to the Customs Union and signed 12 agreements on enhancing cooperation in a number of key spheres such as security, economy, energy and others. Russia also reduced the gas price for Armenia from 270 to 189 dollars per 1,000 cubic meters and enlarged the existing Russian military bases in Armenia.
Armenia became a full member of the Eurasian Economic Union from January 2, 2015, whereupon cooperation and integration with Russia reached a new level.